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Probabilistic picture of in-medium jet evolution

2014/04/29 by Yacine Mehtar-Tani, Mehtar-Tani, Yacine
Mathematics · Physics and Astronomy · #Combinatorics #Cosmology and Gravitation Theories #Dimension (graph theory) #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Jet (fluid) #Jet quenching #Logarithm #Mathematical analysis #Mathematics #Nuclear Theory (nucl-th) #Particle physics #Particle physics theoretical and experimental studies #Parton #Physics #Probabilistic logic #Quantum chromodynamics #Quantum mechanics #Radiative transfer #Renormalization #Renormalization group #Statistical physics #Statistics #Thermodynamics #hep-ph #nucl-th

paper · pdf · doi:10.48550/arxiv.1404.7448

4 pages, contribution to the proceedings of the 6th International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions (Hard Probes 2013), 4 - 8 Nov 2013, Cape Town, South Africa

arxiv created 2014/04/29 · openalex publication_date 2014/04/29 · arxiv updated 2014/04/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We briefly discuss the recently developed probabilistic picture for in-medium jet evolution that is driven by independent multiple scatterings and branchings. These are controlled by the jet quenching parameter q. In this framework, large radiative corrections to p_⊥-broadening of partons in the jet, enhanced by a double logarithm (DL) of the medium size L, are recovered. We argue that these non-local corrections are universal and can be reabsorbed in a renormalization of the jet quenching parameter without spoiling the probabilistic picture. As a consequence, we find that for large media, the mean radiative energy loss result scales as L2+γ, where the anomalous dimension γ=2√(αsNc/π).

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